“Analytical Study for the Annual TEC Parameter Variations for the Solar Cycle 24 over Iraqi Zone”, Iraqi Journal of Science, vol. 56, no. 3C, pp. 2694–2703, Mar. 2023, Accessed: Nov. 22, 2024. [Online]. Available: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/9647